Sides of a right triangle in language C

Language

C
Description

It reads three nonzero integers and determines and prints whether they are the sides of a right triangle.

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#include <stdio.h>

#include <stdlib.h>

int main (void)

{

    int side_1, side_2, side_3;

    printf ("Enter the value of side 1: ");

    scanf ("%d", &side_1);

    (void) getchar ();

    printf ("Enter the value of side 2: ");

    scanf ("%d", &side_2);

    (void) getchar ();

    printf ("Enter the value of side 3: ");

    scanf ("%d", &side_3);

    (void) getchar ();

    if(side_1*side_1==side_2*side_2+side_3*side_3||side_2*side_2==side_3*side_3+side_1*side_1||side_3*side_3==side_1*side_1+side_2*side_2)

        printf ("They are the sides of a right triangle.\n");

    else

        printf ("They not are the sides of a right triangle.\n");

    putchar ('\n');

    system ("pause");

    return EXIT_SUCCESS;

}